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步进器是光电直读光谱仪元素选择系统的关键部件,亦是电子柜系统故障出得最多的部件。在工作过程中,由于步进器动片和定片之间的机械磨损,导致接触不良,通常半年到一年就要换一只步进器。我们除了在线路上作了一些改进外,还注重维修,使步进器寿命延长到十年。一、线路改进1.步进器共四层,PF3:4这一层常出故障,影响测量,为此,对PF3:4线路作了改进:(1)细调灵敏度电位器R301-R312常出现接触不好,改用PZ-8型数字电压表,数字显示稳定,测量精确,量程大。(2)原用步进器PF3:4传输测量管6N1到数字电压表(或微安表)的输出信号,往往接触不好。现增加12个干簧继电器,用步进器控制继电器线包,将继电器接
Stepper is a key component of the optoelectronic direct reading spectrometer element selection system and is also the most troubled component of the electronic cabinet system. In the course of work, due to mechanical wear between the stepper and the stator, resulting in poor contact, usually a year to six months to change a stepper. In addition to making some improvements on the line, we also pay attention to maintenance, extending the life of the stepper to ten years. First, the circuit to improve 1. A total of four stepper, PF3: 4 this layer often fails, affecting the measurement, to this end, made improvements to the PF3: 4 line: (1) Fine adjustment sensitivity potentiometer R301-R312 Poor contact occurs, switch to digital voltmeter PZ-8, the figures show stability, accurate measurement, large scale. (2) The original use of stepper PF3: 4 transmission tube 6N1 to the digital voltmeter (or microammeter table) output signal, often in bad contact. Now add 12 reed relays, stepper control relay line package, the relay connected